/*******************************************************************************
 * Copyright 2014 United States Government as represented by the
 * Administrator of the National Aeronautics and Space Administration.
 * All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package gov.nasa.ensemble.core.plan.editor.merge.constraints;

import gov.nasa.ensemble.core.plan.editor.merge.IMergeColumnProvider;
import gov.nasa.ensemble.core.plan.editor.merge.columns.AbstractMergeColumn;
import gov.nasa.ensemble.emf.model.common.Timepoint;

import java.util.ArrayList;
import java.util.List;

public class CEMergeColumnProvider implements IMergeColumnProvider {

	private List<AbstractMergeColumn<?>> columns = null;
	
	@Override
	public List<AbstractMergeColumn<?>> getColumns() {
		if (columns == null) {
			columns = new ArrayList<AbstractMergeColumn<?>>();
			columns.add(new PinMergeColumn(this));
			columns.add(new TemporalBoundColumn(this, Timepoint.START));
			columns.add(new TemporalBoundColumn(this, Timepoint.END));
			columns.add(new TemporalChainMergeColumn(this));
			columns.add(new ConstraintsMergeColumn(this));
		}
		return columns;
	}
	
	@Override
	public String getName() {
		return "Constraints";
	}
	
}
